SGS Thomson Microelectronics TS487IDT, TS487ID, TS486IST, TS486IDT, TS486ID Datasheet

1/31

■OPERATING FROM Vcc=2V to 5.5V

■STANDBY MODE ACTIVE LO W (TS486) or

HIGH (TS487)

■OUTPUT POWER: 102mW @5V, 38mW

@3.3V into 16Ω with 0.1% THD+N max (1kHz)

■LOW CURRENT CONSUMPTION: 2.5mA max

■High Signal-to-Noise ratio: 103dB(A) at 5V

■High Crosstalk immunity: 83dB (F=1kHz)

■PSRR: 58 dB (F=1kHz), inputs grounded

■ON/OFF click reduction circuitry

■Unity-Gain S table

■SHORT CIRCUIT LIMITATION

■Available in SO8, MiniSO8 & DFN 3x3mm

DESCRIPTION

The TS486/7 is a dual audio power amplifier capa­ble of driving, in single-ended mode, either a 16 or
a 32Ω stereo headset.
Capable of descending to lo w voltages , it delivers
up to 90mW per channel (into 16Ω loads) of con­tinuous average power with 0.3% THD+N in the
audio bandwitdth from a 5V power supply.
An externally-controlled standby mode reduces
the supply current t o 10nA (typ.). The unity gain
stable TS486/7 can be configured by external
gain-setting resistors or used in a f ixed gain ver­sion.

APPLICATIONS

■Headphone Amplifier

■Mobile phone, PDA, computer motherboard

■High end TV, portable audio player

ORDER CODE

MiniSO & DFN only available in Tape & Reel with T suffix,
SO is available in Tube (D) and in Tape & Reel (DT)

PIN CONNECTIONS (top view)

Part

Number

Temperature

Range: I

Package

Gain Marking

DSQ

TS486

-40, +85°C

•

external TS486I

TS487

•

external TS487I

TS486

••

external K86A
TS486-1 tba tba x1/0dB K86B
TS486-2 tba tba x2/6dB K86C
TS486-4 tba tba x4/12dB K86D
TS487

••

external K87A
TS487-1 tba tba x1/0dB K87B
TS487-2 tba tba x2/6dB K87C
TS487-4 tba tba x4/12dB K87D

TS487IDT: SO8, TS487IST, TS487-1IST,

TS487-2IST, TS487-4IST: MiniSO8

TS486-IQT, TS486-1IQT, TS486-2IQT, TS486-4IQT:

DFN8

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

1
2
3
4

5

8
7
6

BYPASS

GND SHUTDOWN

Vcc
OUT

(2)

OUT (1)

VIN (2)

VIN (1)

TS487-IQT,

TS487-1IQT, TS487-2IQT, TS487-4IQT: DFN8

TS486IDT: SO8, TS486IST, TS486-1IST,

TS486-2IST, TS486-4IST: MiniSO8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

OUT (1)

4

3

2

1

BYPASS

GND

VCC
OUT (2)
VIN (2)

SHUTDOWN

VIN (1)

5

6

7

8

TS486
TS487

100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY

MODE

June 2003

TS486-TS487

2/31

ABSOLUTE MAXIMUM RATINGS

OPERATING CONDITIONS

Symbol Parameter Value Unit

V

CC

Supply voltage

1)

6V

V

i

Input Voltage

-0.3v to V

CC

+0.3v

V

T

stg

Storage Temperature -65 to +150 °C

T

j

Maximum Junction Temperature 150 °C

R

thja

Thermal Resistance Junction to Ambient

SO8
MiniSO8
DFN8

175
215

70

°C/W

Pd

Power Dissipation

2)

SO8
MiniSO8
DFN8

0.71

0.58

1.79

W

ESD

Human Body Model (pin to pin): TS486, TS487

3)

1.5 kV

ESD Machine Model - 220pF - 240pF (pin to pin) 100 V

Latch-up Latch-up Immunity (All pins) 200 mA

Lead Temperature (soldering, 10sec ) 250 °C
Output Short-Circuit to Vcc or GND

continous

4)

1. All voltage values are measured with respect to the ground pin.

2. Pd has been calculated with Tamb = 25°C, Tjunction = 150°C.

3. TS487 stands 1.5KV on all pins except sta ndby pin which st ands 1KV.

4. Attention must be pai d to continou s pow er dissipation (V

DD

x 300mA). Exposure of the IC to a short circuit for an extended time period is

dramatically reducing product lif e expectancy .

Symbol Parameter Value Unit

V

CC

Supply Voltage 2 to 5.5 V

R

L

Load Resistor

≥

16

Ω

T

oper

Operating Free Air Temperature Range -40 to + 85 °C

C

L

Load Capacitor

R

L

= 16 to 100

Ω

R

L

> 100

Ω

400
100

pF

V

STB

Standby Voltage Input

TS486 ACTIVE / TS487 in STANDBY
TS486 in STANDBY / TS487 ACTIVE

1.5 ≤ V

STB

≤ V

CC

GND ≤ V

STB

≤ 0.4

1)

V

R

THJA

Thermal Resistance Junction to Ambient

SO8
MiniSO8

DFN8

2)

150
190

41

°C/W

1. The minimum current consumption (I

STANDBY

) is guaranteed at GND (TS486) or VCC (TS487) for the whole temperature range.

2. When mounted on a 4-l ayer PCB.

TS486-TS487

3/31

FIXED GAIN VERSION SPECIFIC ELECTRICAL CHARACTERISTI CS

V

CC

from +5V to +2V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

APPLICATION COMPONENTS INFORMATION

TYPICAL APPLICATION SCHEMATICS

Symbol Parameter Min. Typ. Max. Unit

R

IN 1,2

Input Resistance

1)

1. See figure 30 to establish the value of Cin vs. -3dB cut off frequency.

20 k

Ω

G

Gain value for Gain TS486/TS487-1
Gain value for Gain TS486/TS487-2
Gain value for Gain TS486/TS487-4

0dB
6dB

12dB

dB

Components Functional Description

R

IN1,2

Inverting input resistor which sets the closed loop gain in conjunction with R

FEED

. This resistor also

forms a high pass filter with C

IN

(fc = 1 / (2 x Pi x RIN x CIN)) . Not needed in fixed gain versions.

C

IN1,2

Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminal.

R

FEED1,2

Feedback resistor which sets the closed loop gain in conjunction with RIN.
A

V

= Closed Loop Gain= -R

FEED/RIN

. Not needed in fixed gain versions.

C

S

Supply Bypass capacitor which provides power supply filtering.

C

B

Bypass capacitor which provides half supply filtering.

C

OUT1,2

Output coupling capacitor which blocks the DC voltage at the load input terminal.
This capacitor also forms a high pass filter with RL (fc = 1 / (2 x Pi x R

L

x C

OUT

)).

TS486-TS487

4/31

ELECTRICAL CHARACTERISTICS

V

CC

= +5V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.8 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

1)

1. Only for extern al gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

60
95

64

65
102
108

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 60mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 90mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

2)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

2. Guaranteed by design and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

106 115 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

4.45

4.2

0.45

4.52

0.6

4.35

0.5

0.7

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

2)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 103 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

83

79

80

72

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

5/31

ELECTRICAL CHARACTERISTICS

V

CC

= +3.3V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

1)

1. All electrical values are guaranted with correlation measurements at 2V and 5V.

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.8 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

2)

2. Only for external gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

23
36

26

28

38

42

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 16mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 35mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

3)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

3. Guaranteed by des i gn and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

64 75 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

2.85

2.68

0.3
3

0.45

2.85

0.38

0.52

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1) 3)

(R

L

= 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 98 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

6/31

ELECTRICAL CHARACTERISTICS

V

CC

= +2.5V, GND = 0V, T

amb

= 25°C (unless otherwise specified)

1)

1. All electrical values are guaranted with correlation measurements at 2V and 5V.

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.7 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

2)

2. Only for external gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.1% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

12.5

17.5

13
14
21
22

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 10mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 16mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

3)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

3. Guaranteed by des i gn and evaluation.

53 58 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

45 56 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

2.14

1.97

0.25

2.25

0.35

2.15

0.32

0.45

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

3)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 95 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

7/31

ELECTRICAL CHARACTERISTICS

V

CC

= +2V, GND = 0V , T

amb

= 25°C (unless otherwise specified)

Symbol Parameter Min. Typ. Max. Unit

I

CC

Supply Current

No input signal, no load 1.7 2.5

mA

I

STANDBY

Standby Current

No input signal, V

STANDBY

=GND for TS486, RL=32

Ω

No input signal, V

STANDBY

=Vcc for TS487, RL=32

Ω

10 1000 nA

V

IO

Input Offset Voltage (V

ICM

= VCC/2)

1mV

I

IB

Input Bias Current (V

ICM

= VCC/2)

1)

1. Only for extern al gai n version.

90 200 nA

P

O

Output Power

THD+N = 0.1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 32

Ω

THD+N = 0.3% Max, F = 1kHz, R

L

= 16

Ω

THD+N = 1% Max, F = 1kHz, R

L

= 16

Ω

7

9.5

8
9

12
13

mW

THD + N

Total Harmonic Distortion + Noise (A

v

=-1)

R

L

= 32

Ω,

P

out

= 6.5mW, 20Hz ≤ F ≤ 20kHz

R

L

= 16

Ω,

P

out

= 8mW, 20Hz ≤ F ≤ 20kHz

0.3

0.3

%

PSRR

Power Supply Rejection Ratio, inputs grounded

2)

(Av=-1), RL>=16Ω, CB=1µF, F = 1kHz, Vripple = 200mVpp

2. Guaranteed by design and evaluation.

52 57 dB

I

O

Max Output Current

THD +N ≤ 1%, R

L

= 16Ω connected between out and VCC/2

33 41 mA

V

O

Output Swing
V

OL

: RL = 32

Ω

V

OH

: RL = 32

Ω

V

OL

: RL = 16

Ω

V

OH

: RL = 16

Ω

1.67

1.53

0.24

1.73

0.33

1.63

0.29

0.41

V

SNR

Signal-to-Noise Ratio (A weighted, A

v

=-1)

2)

(RL = 32

Ω,

THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

80 93 dB

Crosstalk

Channel Separation, R

L

= 32

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz
Channel Separation, R

L

= 16

Ω,

Av=-1

F = 1kHz
F = 20Hz to 20kHz

80
76

77
69

dB

C

I

Input Capacitance 1 pF

GBP

Gain Bandwidth Product (R

L

= 32

Ω)

1.1 MHz

SR

Slew Rate, Unity Gain Inverting (R

L

= 16

Ω)

0.4 V/µs

TS486-TS487

8/31

Index of Graphs

Description Figure Page

Common Curves

Open Loop Gain and Phase vs Frequency 1 to 10 9 to 10
Current Consumption vs Power Supply Voltage 11 10
Current Consumption vs Standby Voltage 12 to 17 10 to 11
Output Power vs Power Supply Voltage 18 to19 11 to 12
Output Power vs Load Resistor 20 to 23 12
Power Dissipation vs Output Power 24 to 27 12 to 13
Power Derating vs Ambiant Temperature 28 13
Output Voltage Swing vs Supply Voltage 29 13
Low Frequency Cut Off vs Input Capacitor for fixed gain versions 30 13

Curves With 0dB Gain Setting (Av=-1)

THD + N vs Output Power 31 to 39 14 to 15
THD + N vs Frequency 40 to 42 15
Crosstalk vs Frequency 43 to 48 16
Signal to Noise Ratio vs Power Supply Voltage 49 to 50 17
PSRR vs Frequency 51 to 56 17 to 18

Curves With 6dB Gain Setting (Av=-2)

THD + N vs Output Power 57 to 65 19 to 20
THD + N vs Frequency 66 to 68 20
Crosstalk vs Frequency 69 to 72 21
Signal to Noise Ratio vs Power Supply Voltage 73 to 74 21
PSRR vs Frequency 75 to 79 22

Curves With 12dB Gain Setting (Av=-4)

THD + N vs Output Power 80 to 88 22 to 24
THD + N vs Frequency 89 to 91 24
Crosstalk vs Frequency 92 to 95 24
Signal to Noise Ratio vs Power Supply Voltage 96 to 97 25
PSRR vs Frequency 98 to 102 26

TS486-TS487

9/31

Fig. 1: Open Loop Gain and Phase vs
Frequency

Fig. 3: Open Loop Gain and Phase vs
Frequency

Fig. 5: Open Loop Gain and Phase vs
Frequency

Fig. 2: Open Loop Gain and Phase vs
Frequency

Fig. 4: Open Loop Gain and Phase vs
Frequency

Fig. 6: Open Loop Gain and Phase vs
Frequency

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 16

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 16

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 32

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 16Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 16Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
ZL = 32Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

TS486-TS487

10/31

Fig. 7: Open Loop Gain and Phase vs
Frequency

Fig. 9: Open Loop Gain and Phase vs
Frequency

Fig. 11: Current Consumption vs Power Supply
Voltage

Fig. 8: Open Loop Gain and Phase vs
Frequency

Fig. 10: Open Loop Gain and Phase vs
Frequency

Fig. 12: Current Consumption vs Standby
Voltage

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 32

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 5V
RL = 600

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

012345

0.0

0.5

1.0

1.5

2.0

Ta=85

°C

Ta=25°C

No load

Ta=-40°C

Current Consumption (mA)

Power Supply Voltage (V)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
ZL = 32Ω+400pF
Tamb = 25°C

Gain

Phase

Phase (Deg)

0.1 1 10 100 1000 10000

-40

-20

0

20

40

60

80

-20

0

20

40

60

80

100

120

140

160

180

Gain (dB)

Frequency (kHz)

Vcc = 2V
RL = 600

Ω

Tamb = 25°C

Gain

Phase

Phase (Deg)

012345

0.0

0.5

1.0

1.5

2.0

Ta=85

°C

Ta=25°C

TS486
Vcc = 5V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

TS486-TS487

11/31

Fig. 13: Current Consumption vs Standby
Voltage

Fig. 15: Current Consumption vs Standby
Voltage

Fig. 17: Current Consumption vs Standby
Voltage

Fig. 14: Current Consumption vs Standby
Voltage

Fig. 16: Current Consumption vs Standby
Voltage

Fig. 18: Output P owe r vs Power S up pl y
Voltage

0123

0.0

0.5

1.0

1.5

2.0

Ta=85°C

Ta=25°C

TS486
Vcc = 3.3V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

012345

0.0

0.5

1.0

1.5

2.0

2.5

Ta=85°C

Ta=25°C

TS487
Vcc = 5V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

012

0.0

0.5

1.0

1.5

2.0

Ta=85°C

Ta=25°C

TS487
Vcc = 2V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

012

0.0

0.5

1.0

1.5

2.0

Ta=85°C

Ta=25°C

TS486
Vcc = 2V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

0123

0.0

0.5

1.0

1.5

2.0

Ta=85°C

Ta=25°C

TS487
Vcc = 3.3V
No load

Ta=-40°C

Current Consumption (mA)

Standby Voltage (V)

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

0

25

50

75

100

125

150

175

200

THD+N=10%

THD+N=0.1%

RL = 16

Ω

F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Vcc (V)

TS486-TS487

12/31

Fig. 19: Output P owe r vs Po wer S up pl y
Voltage

Fig. 21: Output Power vs Load Resistor

Fig. 23: Output Power vs Load Resistor

Fig. 20: Output Power vs Load Resistor

Fig. 22: Output Power vs Load Resistor

Fig. 24: Power Dissipation vs Output Power

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

0

25

50

75

100

THD+N=10%

THD+N=0.1%

RL = 32

Ω

F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Vcc (V)

8 16243240485664

0

10

20

30

40

50

60

70

THD+N=10%

THD+N=0.1%

Vcc = 3.3V
F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Load Resistance ( )

8 16243240485664

0

5

10

15

20

25

THD+N=10%

THD+N=0.1%

Vcc = 2V
F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Load Resistance ( )

8 16243240485664

0

20

40

60

80

100

120

140

160

180

200

THD+N=10%

THD+N=0.1%

Vcc = 5V
F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Load Resistance ( )

8 16243240485664

0

5

10

15

20

25

30

35

40

45

50

THD+N=10%

THD+N=0.1%

Vcc = 2.5V
F = 1kHz
BW < 125kHz
Tamb = 25°C

THD+N=1%

Output power (mW)

Load Resistance ( )

0 20406080100

0

20

40

60

80

Vcc=5V
F=1kHz
THD+N<1%

RL=32

Ω

RL=16

Ω

Power Dissipation (mW)

Output Power (mW)

TS486-TS487

13/31

Fig. 25: Power Dissipation vs Output Power

Fig. 27: Power Dissipation vs Output Power

Fig. 29: Output Voltage Swing vs Power Supply
Voltage

Fig. 26: Power Dissipation vs Output Power

Fig. 28: Power Derating vs Ambiant
Temperature

Fig. 30: Low Frequency Cut Off vs Input
Capacitor for fixed gain versions.

0 10203040

0

10

20

30

40

Vcc=3.3V
F=1kHz
THD+N<1%

RL=16

Ω

RL=32

Ω

Power Dissipation (mW)

Output Power (mW)

024681012

0

5

10

15

RL=16

Ω

RL=32

Ω

Vcc=2V
F=1kHz
THD+N<1%

Power Dissipation (mW)

Output Power (mW)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

RL=32

Ω

RL=16

Ω

Tamb=25°C

VOH & VOL (V)

Power Supply Voltage (V)

0 5 10 15 20

0

10

20

Vcc=2.5V
F=1kHz
THD+N<1%

RL=16Ω

RL=32Ω

Power Dissipation (mW)

Output Power (mW)

Ω

Ω

Ω

TS486-TS487

14/31

Fig. 31: THD + N vs Output Power

Fig. 33: THD + N vs Output Power

Fig. 35: THD + N vs Output Power

Fig. 32: THD + N vs Output Power

Fig. 34: THD + N vs Output Power

Fig. 36: THD + N vs Output Power

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20Hz
Av = -1
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20Hz
Av = -1, Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

1 10 100

1E-3

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 1kHz
Av = -1
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 20Hz
Av = -1
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 1kHz
Av = -1
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 1kHz
Av = -1, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

TS486-TS487

15/31

Fig. 37: THD + N vs Output Power

Fig. 39: THD + N vs Output Power

Fig. 41: THD + N vs Frequency

Fig. 38: THD + N vs Output Power

Fig. 40: THD + N vs Frequency

Fig. 42: THD + N vs Frequency

1 10 100

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20kHz
Av = -1
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20kHz
Av = -1, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

100 1000 10000

0.01

0.1

Vcc=2V, Po=6mW

Vcc=5V, Po=55mW

RL=32

Ω

Av=-1
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

THD + N (%)

Frequency (Hz)

1 10 100

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32Ω
F = 20kHz
Av = -1
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

100 1000 10000

0.01

0.1

Vcc=2V, Po=7.5mW

Vcc=5V, Po=85mW

RL=16

Ω

Av=-1
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

100 1000 10000

1E-3

0.01

0.1

Vcc=5V, Vo=1.3Vrms

Vcc=2V, Vo=0.5Vrms

RL=600Ω
Av=-1
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

TS486-TS487

16/31

Fig. 43: Crosstalk vs Frequency

Fig. 45: Crosstalk vs Frequency

Fig. 47: Crosstalk vs Frequency

Fig. 44: Crosstalk vs Frequency

Fig. 46: Crosstalk vs Frequency

Fig. 48: Crosstalk vs Frequency

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16

Ω

Vcc=5V
Pout=85mW
Av=-1
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32

Ω

Vcc=5V
Pout=55mW
Av=-1
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

Cb = 4.7µF

Cb = 1µF

RL=16

Ω

Vcc=5V
Pout=85mW
Av=-1
ChB to ChA
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16

Ω

Vcc=2V
Pout=7.5mW
Av=-1
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32

Ω

Vcc=2V
Pout=6mW
Av=-1
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

Cb = 4.7µF

Cb = 1µF

RL=32

Ω

Vcc=5V
Pout=55mW
Av=-1
ChB to ChA
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

TS486-TS487

17/31

Fig. 49: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 51: PSRR vs Power Supply Voltage

Fig. 53: PSRR vs Input Capacitor

Fig. 50: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A

Fig. 52: PSRR vs Bypass Capacitor

Fig. 54: PSRR vs Output Capacitor

2.0 2.5 3.0 3.5 4.0 4.5 5.0

90

92

94

96

98

100

102

104

Av = -1
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

100 1000 10000 100000

-80

-70

-60

-50

-40

-30

-20

-10

0

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 200mVpp
Av = -1
Input = grounded
Cb = 1µF
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Cin = 100nF

Cin = 1µF, 220nF

Vripple = 200mVpp
Av = -1, Vcc = 5V
Input = grounded
Cb = 1µF, Rin = 20kΩ
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

90

92

94

96

98

100

102

104

Av = -1
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

100 1000 10000 100000

-80

-70

-60

-50

-40

-30

-20

-10

0

Cb = 4.7µF

Cb = 2.2µF

Cb = 1µF

Vripple = 200mVpp
Av = -1
Input = grounded
Vcc = 5V
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-80

-70

-60

-50

-40

-30

-20

-10

0

Cout = 220µF

Cout = 470µF

Vripple = 200mVpp
Av = -1, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 16Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

TS486-TS487

18/31

Fig. 55: PSRR vs Output Capacitor Fig. 56: PSRR vs Power Supply Voltage

100 1000 10000 100000

-80

-70

-60

-50

-40

-30

-20

-10

0

Cout = 100µF

Cout = 470µF

Vripple = 200mVpp
Av = -1, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 32Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-80

-70

-60

-50

-40

-30

-20

-10

0

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 200mVpp
Av = -1
Input = floating
Cb = 1µF
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

TS486-TS487

19/31

Fig. 57: THD + N vs Output Power

Fig. 59: THD + N vs Output Power

Fig. 61: THD + N vs Output Power

Fig. 58: THD + N vs Output Power

Fig. 60: THD + N vs Output Power

Fig. 62: THD + N vs Output Power

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20Hz
Av = -2
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20Hz
Av = -2, Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 1kHz
Av = -2
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 20Hz
Av = -2
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 1kHz
Av = -2
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 1kHz
Av = -2, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

TS486-TS487

20/31

Fig. 63: THD + N vs Output Power

Fig. 65: THD + N vs Output Power

Fig. 67: THD + N vs Frequency

Fig. 64: THD + N vs Output Power

Fig. 66: THD + N vs Frequency

Fig. 68: THD + N vs Frequency

1 10 100

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20kHz
Av = -2
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20kHz
Av = -2, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

100 1000 10000

0.01

0.1

Vcc=2V, Po=6mW

Vcc=5V, Po=55mW

RL=32

Ω

Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

THD + N (%)

Frequency (Hz)

1 10 100

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32Ω
F = 20kHz
Av = -2
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

100 1000 10000

0.01

0.1

Vcc=2V, Po=7.5mW

Vcc=5V, Po=85mW

RL=16

Ω

Av=-2
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

100 1000 10000

1E-3

0.01

0.1

Vcc=5V, Vo=1.3Vrms

Vcc=2V, Vo=0.5Vrms

RL=600

Ω

Av=-2
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

TS486-TS487

21/31

Fig. 69: Crosstalk vs Frequency

Fig. 71: Crosstalk vs Frequency

Fig. 73: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 70: Crosstalk vs Frequency

Fig. 72: Crosstalk vs Frequency

Fig. 74: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16

Ω

Vcc=5V
Pout=85mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32

Ω

Vcc=5V
Pout=55mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

82

84

86

88

90

92

94

96

98

100

Av = -2
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16

Ω

Vcc=2V
Pout=7.5mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32Ω
Vcc=2V
Pout=6mW
Av=-2
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

82

84

86

88

90

92

94

96

98

100

102

104

Av = -2
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

TS486-TS487

22/31

Fig. 75: PSRR vs Power Supply Voltage

Fig. 77: PSRR vs Input Capacitor

Fig. 79: PSRR vs Output Capacitor

Fig. 76: PSRR vs Bypass Capacitor

Fig. 78: PSRR vs Output Capacitor

Fig. 80: THD + N vs Output Power

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 200mVpp
Av = -2
Input = grounded
Cb = 1µF
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Cin = 100nF

Cin = 1µF, 220nF

Vripple = 200mVpp
Av = -2, Vcc = 5V
Input = grounded
Cb = 1µF, Rin = 20kΩ
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Cout = 100µF

Cout = 470µF

Vripple = 200mVpp
Av = -2, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 32Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Cb = 4.7µF

Cb = 2.2µF

Cb = 1µF

Vripple = 200mVpp
Av = -2
Input = grounded
Vcc = 5V
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-70

-60

-50

-40

-30

-20

-10

0

Cout = 220µF

Cout = 470µF

Vripple = 200mVpp
Av = -2, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 16Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20Hz
Av = -4
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

TS486-TS487

23/31

Fig. 81: THD + N vs Output Power

Fig. 83: THD + N vs Output Power

Fig. 85: THD + N vs Output Power

Fig. 82: THD + N vs Output Power

Fig. 84: THD + N vs Output Power

Fig. 86: THD + N vs Output Power

1 10 100

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 20Hz
Av = -4
Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 1kHz
Av = -4
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 1kHz
Av = -4, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20Hz
Av = -4, Cb = 1µF
BW < 22kHz
Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

1 10 100

0.01

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 1kHz
Av = -4
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

1 10 100

0.1

1

10

Vcc=5VVcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 16

Ω

F = 20kHz
Av = -4
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

TS486-TS487

24/31

Fig. 87: THD + N vs Output Power

Fig. 89: THD + N vs Frequency

Fig. 91: THD + N vs Frequency

Fig. 88: THD + N vs Output Power

Fig. 90: THD + N vs Frequency

Fig. 92: Crosstalk vs Frequency

1 10 100

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 32

Ω

F = 20kHz
Av = -4
Cb = 1µF
BW < 125kHz
Tamb = 25°C

THD + N (%)

Output Power (mW)

100 1000 10000

0.1

Vcc=2V, Po=7.5mW

Vcc=5V, Po=85mW

RL=16

Ω

Av=-4
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

100 1000 10000

1E-3

0.01

0.1

Vcc=5V, Vo=1.3Vrms

Vcc=2V, Vo=0.5Vrms

RL=600

Ω

Av=-4
Cb = 1µF
Bw < 125kHz
Tamb = 25°C

20k20

THD + N (%)

Frequency (Hz)

0.01 0.1 1

1E-3

0.01

0.1

1

10

Vcc=5V

Vcc=3.3V

Vcc=2.5V

Vcc=2V

RL = 600Ω, F = 20kHz
Av = -4, Cb = 1µF
BW < 125kHz, Tamb = 25°C

THD + N (%)

Output Voltage (Vrms)

100 1000 10000

0.01

0.1

Vcc=2V, Po=6mW

Vcc=5V, Po=55mW

RL=32Ω
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

THD + N (%)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16Ω
Vcc=5V
Pout=85mW
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

TS486-TS487

25/31

Fig. 93: Crosstalk vs Frequency

Fig. 95: Crosstalk vs Frequency

Fig. 97: Signal to Noise Ratio vs Power Supply
Voltage with Weighted Filter Type A

Fig. 94: Crosstalk vs Frequency

Fig. 96: Signal to Noise Ratio vs Power Supply
Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 98: PSRR vs Power Supply Voltage

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=16Ω
Vcc=2V
Pout=7.5mW
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32Ω
Vcc=2V
Pout=6mW
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

80

82

84

86

88

90

92

94

96

98

100

Av = -4
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

100 1000 10000

0

20

40

60

80

ChB to ChA

ChA to ChB

RL=32

Ω

Vcc=5V
Pout=55mW
Av=-4
Cb = 1µF
Bw < 125kHz
Tamb=25°C

20k20

Crosstalk (dB)

Frequency (Hz)

2.0 2.5 3.0 3.5 4.0 4.5 5.0

80

82

84

86

88

90

92

94

96

98

100

Av = -4
Cb = 1µF
THD+N < 0.4%
Tamb = 25°C

RL=32

Ω

RL=16

Ω

RL=600

Ω

Signal to Noise Ratio (dB)

Power Supply Voltage (V)

100 1000 10000 100000

-60

-50

-40

-30

-20

-10

0

Vcc = 2V

Vcc = 5V, 3.3V & 2.5V

Vripple = 200mVpp
Av = -4
Input = grounded
Cb = 1µF
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

TS486-TS487

26/31

Fig. 99: PSRR vs Input Capacitor

Fig. 101: PSRR vs Output Capacitor

Fig. 100: PSRR vs Bypass Capacitor

Fig. 102: PSRR vs Output Capacitor

100 1000 10000 100000

-60

-50

-40

-30

-20

-10

0

Cin = 100nF

Cin = 1µF, 220nF

Vripple = 200mVpp
Av = -4, Vcc = 5V
Input = grounded
Cb = 1µF, Rin = 20kΩ
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-60

-50

-40

-30

-20

-10

0

Cout = 220µF

Cout = 470µF

Vripple = 200mVpp
Av = -4, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 16Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-60

-50

-40

-30

-20

-10

0

Cb = 4.7µF

Cb = 2.2µF

Cb = 1µF

Vripple = 200mVpp
Av = -4
Input = grounded
Vcc = 5V
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

100 1000 10000 100000

-60

-50

-40

-30

-20

-10

0

Cout = 100µF

Cout = 470µF

Vripple = 200mVpp
Av = -4, Vcc = 5V
Input = grounded
Cb = 1µF, RL = 32Ω
RL >= 16Ω
Tamb = 25°C

PSRR (dB)

Frequency (Hz)

TS486-TS487

27/31

APPLICA TI ON NOTE:

TS486/487 GENERAL DESCRIPTION

TS486/487 is a family of dual audio amplifiers able
to drive 16

Ω or 32Ω headsets. Working in the 2V to

5.5V supply voltage range, they deliver 100mW at
5V and 12mW at 2V in a 16

Ω load. An internal

output current limitation, offers protection against
short-circuits at the output over a limited time
period.

Fixed gain versions of the TS486 and TS487
including the feedback resistor and the input
resistors are also proposed to reduce the number
of external par ts.

The TS486 and TS487 exhibit a low quiescent
current of typically 1.8mA, allowing usage in
portable applications.

The standby mode is selected using the
SHUTDOWN input. For TS486 (respectively
TS487), the device is in sleep mode when PIN 5 is
connected at GND (resp. V

CC

).

GAIN SETTING

The gain of each inverter amplifier o f the TS486
and TS487 is set by the resistors R

IN

and R

FEED

.

Gain

LINEAR

= -(R

FEED/RIN

)

Gain

dB

= 20 Log(R

FEED/RIN

)

Fixed gain versions TS486-n and TS487-n
including R

IN

and R

FEED

are proposed to reduce

external parts.

LOW FREQUENCY ROLL-OFF WITH INPUT
CAPACITORS

The low roll-off frequency of the headphone
amplifiers depends on the input capacitors C

IN1

and C

IN2

and the input resistors R

IN1

and R

IN2

.

The C

IN

capacitor in seri es with th e input resist or

R

IN

of the amplifier is equivalent to a first order

high pass filter.
Assuming that F

min

is the lowest frequen cy to be
amplified (with a 3dB attenuation), the minimum
value of C

IN

is:

C

IN

> 1 / (2*π*F

min*RIN

)

The following curve gives directly the low
frequency roll-off versus the input capacitor C

IN

TS486-TS487

28/31

and for various values of the input resistor RIN .

The input resistance of the fixed gain version is
typically 20k

Ω.

The following curve shows the limits of the roll off
frequency depending on the min. and max. values
of Rin:

LOW FREQUENCY ROLL OFF WITH OUTPUT
CAPACITORS

The DC voltage on the output s of the TS486/487
is blocked by the output capacitors C

OUT1

and

C

OUT2

. Each output capacitor C

OUT

in se r ies wit h

the resistance of the load R

L

is equivalent to a first

order high pass filter.
Assuming that F

min

is the lowest frequen cy to be
amplified (with a 3dB attenuation), the minimum
value of C

OUT

is:

C

OUT

> 1 / (2*π*F

min*RL

)

The following curve gives directly the low roll-off

frequency versus the output capacitor C

OUT

in µF

and for the two typical 16

Ω and 32Ω

impedances:

DECOUPLING CAPACITOR C

B

The internal bias voltage at Vcc/2 is decoupled
with the external capacitor C

B

.

The TS486 and TS487 have a specified Power
Supply Rejection Ratio parameter with C

B

= 1µF.

A higher value of C

B

improves the PSRR, for
example, a 4.7µF improves the P S RR by 15dB at
200Hz (please, ref er to fig. 76 "PSR R vs Bypass
Capacitor").

POP PRECAUTIONS

Generally headphones are connected using a
connector as a jack. To prevent a pop in the
headphones wh en plugged i n the jack, a resistor
should be connected in parallel with each
headphone output. This allows the capacitors
Cout to be charged ev en when no headphone is
plugged.

A resistor of 1 k

Ω is high enough to be a negligible

load, and low enough to charge the capacitors
Cout in less than one second.

0.01 0.1 1 10

1

10

100

1000

Rin = 100k

Ω

Rin = 20kΩ and
fixed gain versions

Rin = 10k

Ω

Rin = 1k

Ω

Low roll−off frequency (Hz)

Cin (µF)

Ω

Ω

Ω

10 100 1000 10000

1

10

100

1000

RL = 16

Ω

RL = 32

Ω

Low roll-off frequency (Hz)

C

OUT

( F)

TS486-TS487

29/31

PACKAGE MECHANICAL DATA

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.35 1.75 0.053 0.069
A1 0.10 0.25 0.04 0.010
A2 1.10 1.65 0.043 0.065

B 0.33 0.51 0.013 0.020

C 0.19 0.25 0.007 0.010

D 4.80 5.00 0.189 0.197

E 3.80 4.00 0.150 0.157

e 1.27 0.050

H 5.80 6.20 0.228 0.244

h 0.25 0.50 0.010 0.020

L 0.40 1.27 0.016 0.050

k ˚ (max.)

ddd 0.1 0.04

SO-8 MECHANICAL DATA

0016023/C

8

TS486-TS487

30/31

PACKAGE MECHANICAL DATA

TS486-TS487

31/31

PACKAGE MECHANICAL DATA

Information furnished is bel ieved to be accurate and reliable. However, STMicroelec tronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No li cense is granted by implicat i on or otherwise under a ny patent or patent righ ts of STMicroelectronics. Specificati ons
mentioned in this publica tion are subject to change without notice. Thi s publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

© 2003 STMicroelectronics - All Rights Reserved

STMicroelectroni cs GROUP OF COMPANIES

Australi a - Brazil - Chi na - Finland - F rance - Germany - Hong Kon g - India - Italy - Japan - Mala ys i a - Malta - Morocco

Singapo re - Spain - Sweden - Switzerland - Un i ted Kingdom

http://www.s t.com